Weq CFW700 Series, User Manual, Page: 68 / 70

CFW700 | 63
Technical Specifications
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8.2 ELECTRICAL/GENERAL SPECIFICATIONS
Table 8.1: Electrical/general specifications
CONTROL METHOD
„
Voltage source.
„
Type of control:
- V/f (Scalar).
- V V W: Voltage Vector Control.
- Vector control with encoder.
- Sensorless vector control (without encoder).
„
PWM SVM (Space Vector Modulation).
„
Full digital (software) current, flux, and speed regulators.
Execution rate:
- current regulators: 0.2 ms (5 kHz).
- flux regulator: 0.4 ms (2.5 kHz).
- speed regulator / speed measurement: 1.2 ms.
OUTPUT
FREQUENCY
„
0 to 3.4 x rated motor frequency (P0403). The rated motor frequency
is programmable from 0 Hz to 300 Hz in the V/f and V V W modes
and from 30 Hz to 120 Hz in the vector mode.
„
Maximum output frequency limit according to the switching frequency:
- 125 Hz (switching frequency = 1.25 kHz).
- 250 Hz (switching frequency = 2.5 kHz).
- 500 Hz (switching frequency ≥ 5 kHz).
PERFORMANCE SPEED
CONTROL
V/f (Scalar):
„
Regulation (with slip compensation): 1 % of the rated speed.
„
Speed variation range: 1:20.
V V W:
„
Regulation: 1 % of the rated speed.
„
Speed variation range: 1:30.
Sensorless:
„
Regulation: 0.5 % of the rated speed.
„
Speed variation range: 1:100.
Vector with Encoder:
„
Regulation:
- ±0.1 % of the rated speed with a digital reference (keypad, serial,
fieldbus, Electronic Potentiometer, Multispeed).
- ±0.2 % of the rated speed with a 12-bits analog input.
PERFORMANCE TORQUE
CONTROL
„
Range: 10 to 180 %, regulation: ±5 % of the rated torque (with encoder).
„
Range: 20 to 180 %, regulation: ±10 % of the rated torque (sensorless
above 3 Hz).
USER’S POWER
SUPPLIES
(CC700 board) REF
(XC1:21-24)
„
10 V ± 10 % power supply to be used with the potentiometer at the
analog inputs.
„
Maximum output current: 2 mA.
+5V-ENC
(XC1:1-8)
„
5 V ± 5 % power supply for the encoder.
„
Maximum output current: 160 mA.
+24 V
„
24 V ± 10 % power supply to be used with the digital inputs/outputs.
„
Maximum output current: 500 mA.
INPUTS
(CC700
board) ANALOG
„
2 differential inputs.
„
Resolution: 11 bits + signal.
„
Input levels: (0 to 10) V, (-10 to 10) V, (0 to 20) mA or (4 to 20) mA.
„
Impedance: 400 kΩ for the voltage input, 500 Ω for the current input.
„
Maximum input voltage: ± 15 V.
„
Programmable functions.
DIGITAL
„
8 isolated digital inputs.
„
24 Vdc (High level ≥ 10 V, Low level ≤ 2 V).
„
Maximum input voltage: ± 30 Vdc.
„
Input impedance: 2 kΩ.
„
Active high or active low input selectable by jumper (simultaneous
selection for all inputs).